Indianapolis weather in December
December in Indianapolis: cold, a little rain, with clean air — a fair time to visit.
#10 of 12 months in Indianapolis · #648 of 897 destinations to visit in December · comfort 59/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Indianapolis in December
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Indianapolis climate normals — December
| Daytime high | 7°C / 45°F | 🧥 cold |
|---|---|---|
| Nighttime low | 0°C / 32°F | |
| Rainfall | 76 mm / 3 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 73% | 💧 humid |
| Dew point | -2°C / 29°F | |
| Sunshine | 4.9 h/day | |
| Daylight | 9.4 h | |
| Wind | 19 km/h / 12 mph | |
| Snowfall | 3.9 cm / 1.5 in | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Indianapolis in December — FAQ
- Is December a good time to visit Indianapolis?
- December in Indianapolis: cold, a little rain, with clean air — a fair time to visit. It ranks #10 of 12 months for Indianapolis on SeasonMap's comfort score (59/100).
- What is the weather like in Indianapolis in December?
- In December, Indianapolis averages a daily high of 7.3°C and a low of -0.1°C, with about 76.2 mm of rain over roughly 9.8 rainy days.
- What is the air quality in Indianapolis in December?
- Indianapolis has a mean US Air Quality Index of about 33 in December.
- Does it snow in Indianapolis in December?
- Indianapolis sees roughly 3.9 cm of snowfall in December.